To identify high-paying jobs for people who do not like stress, the following data were collected showing the average annual salary ($1000s) and the stress tolerance for a variety of occupations (Business Insider, November 8, 2013).

The stress tolerance for each job is rating on a scale from 0 to 100, where a lower rating indicates less stress.
a. Develop a scatter diagram for these data with average annual salary as the independent variable. What does the scatter diagram indicate about the relationship between the two variables?
b. Use these data to develop an estimated regression equation that can be used to predict stress tolerance given the average annual salary.
c. At the .05 level of significance, does there appear to be a significant statistical relationship between the two variables?
d. Would you feel comfortable in predicting the stress tolerance for a different occupation given the average annual salary for the occupation? Explain.
e. Does the relationship between average annual salary and stress tolerance for these data seem reasonable to you? Explain.

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Average Annual Salary ($1000s) Job Art directors Astronomers Audiologists Dental hygienists Economists Engineers Law teachers Optometrists Political scientists Urban and regional planners 96 70 70 92 92 100 98 102 65 Stress Tolerance 69.0 62.0 67.5 71.3 63.3 69.5 62.8 65.5 60.1 69.0